80 lines
1.5 KiB
C
80 lines
1.5 KiB
C
/* ex2-c: Advent2020 game, day 6/game 2
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#define QSIZE ('z'-'a'+1)
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static int Q[QSIZE];
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void reset_array(){
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int i;
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for (i=0; i<QSIZE; ++i)
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Q[i]=0;
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}
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void print_array()
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{
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int i;
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for (i=0; i<QSIZE; i++) {
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printf("%d ", Q[i]);
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}
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printf("\n");
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}
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void set_array(str)
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char *str;
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{
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for (; *str; str++) {
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if (*str >= 'a' && *str <= 'z')
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Q[*str-'a']++;
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}
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}
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int count_array (people)
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int people;
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{
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int count=0, i;
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for (i=0; i<QSIZE; ++i) {
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if (Q[i] == people)
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count++;
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}
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return count;
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}
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void calcgroup(group, count, people)
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int *group, *count, *people;
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{
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(*group)++;
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*count += count_array(*people);
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*people=0;
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reset_array();
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}
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int main(ac, av)
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char **av;
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{
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int people=0, group=0, count=0;
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char line[80];
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while (fgets(line, sizeof line, stdin)) {
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if (*line == '\n') {
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calcgroup(&group, &count, &people);
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continue;
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}
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people++;
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set_array(line);
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//sscanf(line, "%[FB]%[RL]", rowstr, colstr);
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//cur=(str2int(rowstr)<<3) ^ str2int(colstr);
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// *(pseats+cur)=1;
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}
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//for (; *pseats == 0; ++pseats)
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// ;
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//for (; *pseats == 1; ++pseats)
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// ;
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//printf("%s : lines=%d seat=%ld\n", *av, count, pseats-(int *)seats);
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calcgroup(&group, &count, &people);
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printf("%s : groups=%d count=%d\n", *av, group, count);
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exit (0);
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}
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